Corrected some const-correctness errors in libconfig

Signed-off-by: Haru <haru@dotalux.com>

6 files changed, 25 insertions, 31 deletions

diff --git a/3rdparty/libconfig/extra/gen/grammar.y b/3rdparty/libconfig/extra/gen/grammar.y
index ef8ed4f18..a99b8cf1b 100644
--- a/3rdparty/libconfig/extra/gen/grammar.y
+++ b/3rdparty/libconfig/extra/gen/grammar.y
@@ -54,7 +54,7 @@ extern int libconfig_yyget_lineno();
 static const char *err_array_elem_type = "mismatched element type in array";
 static const char *err_duplicate_setting = "duplicate setting name";
 
-#define _delete(P) free((void *)(P))
+#define _delete(P) free(P)
 
 #define IN_ARRAY() \
   (ctx->parent && (ctx->parent->type == CONFIG_TYPE_ARRAY))
@@ -332,7 +332,7 @@ simple_value:
   {
     if(IN_ARRAY() || IN_LIST())
     {
-      const char *s = parsectx_take_string(ctx);
+      char *s = parsectx_take_string(ctx);
       struct config_setting_t *e = config_setting_set_string_elem(ctx->parent, -1, s);
       _delete(s);
 
@@ -348,7 +348,7 @@ simple_value:
     }
     else
     {
-      const char *s = parsectx_take_string(ctx);
+      char *s = parsectx_take_string(ctx);
       config_setting_set_string(ctx->setting, s);
       _delete(s);
     }
diff --git a/3rdparty/libconfig/grammar.c b/3rdparty/libconfig/grammar.c
index 7d5757b2f..6cd6fb722 100644
--- a/3rdparty/libconfig/grammar.c
+++ b/3rdparty/libconfig/grammar.c
@@ -95,7 +95,7 @@ extern int libconfig_yyget_lineno();
 static const char *err_array_elem_type = "mismatched element type in array";
 static const char *err_duplicate_setting = "duplicate setting name";
 
-#define _delete(P) free((void *)(P))
+#define _delete(P) free(P)
 
 #define IN_ARRAY() \
   (ctx->parent && (ctx->parent->type == CONFIG_TYPE_ARRAY))
@@ -1751,7 +1751,7 @@ yyreduce:
     {
     if(IN_ARRAY() || IN_LIST())
     {
-      const char *s = parsectx_take_string(ctx);
+      char *s = parsectx_take_string(ctx);
       struct config_setting_t *e = config_setting_set_string_elem(ctx->parent, -1, s);
       _delete(s);
 
@@ -1767,7 +1767,7 @@ yyreduce:
     }
     else
     {
-      const char *s = parsectx_take_string(ctx);
+      char *s = parsectx_take_string(ctx);
       config_setting_set_string(ctx->setting, s);
       _delete(s);
     }
diff --git a/3rdparty/libconfig/libconfig.c b/3rdparty/libconfig/libconfig.c
index 696f5fc08..5b6eaac73 100644
--- a/3rdparty/libconfig/libconfig.c
+++ b/3rdparty/libconfig/libconfig.c
@@ -49,8 +49,8 @@
 #define CHUNK_SIZE 16
 #define FLOAT_PRECISION DBL_DIG
 
-#define _new(T) (T *)calloc(1, sizeof(T)) /* zeroed */
-#define _delete(P) free((void *)(P))
+#define _new(T) calloc(1, sizeof(T)) /* zeroed */
+#define _delete(P) free(P)
 
 /* ------------------------------------------------------------------------- */
 
@@ -567,7 +567,7 @@ static int __config_read(struct config_t *config, FILE *stream, const char *file
 
   /* Reinitialize the config */
   void (*destructor)(void *) = config->destructor;
-  const char *include_dir = config->include_dir;
+  char *include_dir = config->include_dir;
   unsigned short tab_width = config->tab_width;
   int options = config->options;
 
@@ -743,7 +743,7 @@ int config_write_file(struct config_t *config, const char *filename)
 void config_destroy(struct config_t *config)
 {
   unsigned int count = config->num_filenames;
-  const char **f;
+  char **f;
 
   __config_setting_destroy(config->root);
 
diff --git a/3rdparty/libconfig/libconfig.h b/3rdparty/libconfig/libconfig.h
index 58c1f914e..69f2e6dbf 100644
--- a/3rdparty/libconfig/libconfig.h
+++ b/3rdparty/libconfig/libconfig.h
@@ -109,12 +109,12 @@ struct config_t
   int options;
   unsigned short tab_width;
   short default_format;
-  const char *include_dir;
+  char *include_dir;
   const char *error_text;
   const char *error_file;
   int error_line;
   enum config_error_t error_type;
-  const char **filenames;
+  char **filenames;
   unsigned int num_filenames;
 };
 
@@ -206,7 +206,7 @@ extern LIBCONFIG_API struct config_setting_t *config_setting_set_string_elem(
   struct config_setting_t *setting, int idx, const char *value);
 
 #define /* const char * */ config_get_include_dir(/* const struct config_t * */ C) \
-  ((C)->include_dir)
+  ((const char *)(C)->include_dir)
 
 #define /* int */ config_setting_type(/* const struct config_setting_t * */ S) \
   ((S)->type)
diff --git a/3rdparty/libconfig/scanctx.c b/3rdparty/libconfig/scanctx.c
index b3d9a6379..94ba73edd 100644
--- a/3rdparty/libconfig/scanctx.c
+++ b/3rdparty/libconfig/scanctx.c
@@ -38,25 +38,23 @@ static const char *err_include_too_deep = "include file nesting too deep";
 /* ------------------------------------------------------------------------- */
 
 static const char *__scanctx_add_filename(struct scan_context *ctx,
-                                          const char *filename)
+                                          char *filename)
 {
   unsigned int count = ctx->num_filenames;
-  const char **f;
+  char **f;
 
   for(f = ctx->filenames; count > 0; ++f, --count)
   {
     if(!strcmp(*f, filename))
     {
-      free((void *)filename);
+      free(filename);
       return(*f); /* already in list */
     }
   }
 
   if((ctx->num_filenames % CHUNK_SIZE) == 0)
   {
-    ctx->filenames = (const char **)realloc(
-      (void *)ctx->filenames,
-      (ctx->num_filenames + CHUNK_SIZE) * sizeof(const char *));
+    ctx->filenames = realloc(ctx->filenames, (ctx->num_filenames + CHUNK_SIZE) * sizeof(char *));
   }
 
   ctx->filenames[ctx->num_filenames] = filename;
@@ -69,16 +67,14 @@ static const char *__scanctx_add_filename(struct scan_context *ctx,
 void scanctx_init(struct scan_context *ctx, const char *top_filename)
 {
   memset(ctx, 0, sizeof(struct scan_context));
-#ifndef __clang_analyzer__ // FIXME: Clang's static analyzer doesn't like this
   if(top_filename)
     ctx->top_filename = __scanctx_add_filename(ctx, strdup(top_filename));
-#endif // __clang_analyzer__
 }
 
 /* ------------------------------------------------------------------------- */
 
-const char **scanctx_cleanup(struct scan_context *ctx,
-                             unsigned int *num_filenames)
+char **scanctx_cleanup(struct scan_context *ctx,
+                       unsigned int *num_filenames)
 {
   int i;
 
@@ -97,7 +93,7 @@ FILE *scanctx_push_include(struct scan_context *ctx, void *buffer,
                            const char **error)
 {
   FILE *fp = NULL;
-  const char *file;
+  char *file;
   char *full_file = NULL;
 
   *error = NULL;
@@ -119,20 +115,18 @@ FILE *scanctx_push_include(struct scan_context *ctx, void *buffer,
   }
 
   fp = fopen(full_file ? full_file : file, "rt");
-  free((void *)full_file);
+  free(full_file);
 
   if(fp)
   {
     ctx->streams[ctx->depth] = fp;
-#ifndef __clang_analyzer__ // FIXME: Clang's static analyzer doesn't like this
     ctx->files[ctx->depth] = __scanctx_add_filename(ctx, file);
-#endif // __clang_analyzer__
     ctx->buffers[ctx->depth] = buffer;
     ++(ctx->depth);
   }
   else
   {
-    free((void *)file);
+    free(file);
     *error = err_bad_include;
   }
 
diff --git a/3rdparty/libconfig/scanctx.h b/3rdparty/libconfig/scanctx.h
index 004523e2a..a5939ca05 100644
--- a/3rdparty/libconfig/scanctx.h
+++ b/3rdparty/libconfig/scanctx.h
@@ -40,13 +40,13 @@ struct scan_context
   FILE *streams[MAX_INCLUDE_DEPTH];
   int depth;
   strbuf_t string;
-  const char **filenames;
+  char **filenames;
   unsigned int num_filenames;
 };
 
 extern void scanctx_init(struct scan_context *ctx, const char *top_filename);
-extern const char **scanctx_cleanup(struct scan_context *ctx,
-                                    unsigned int *num_filenames);
+extern char **scanctx_cleanup(struct scan_context *ctx,
+                              unsigned int *num_filenames);
 
 extern FILE *scanctx_push_include(struct scan_context *ctx, void *prev_buffer,
                                   const char **error);